Postman

Postman is the world's leading API platform, trusted by more than 40 million developers and 500,000 organizations to design, build, test, document, and manage APIs across the entire development lifecycle. The platform provides an intuitive interface for sending HTTP requests, inspecting responses, and debugging API behavior without requiring developers to write custom scripts, while also supporting more advanced use cases such as automated test suites, CI/CD pipeline integration via its command-line runner Newman, and multi-environment configuration management. Teams can organize work into collections and shared workspaces, automatically generate API documentation, and enforce governance standards — making it a true end-to-end solution rather than just a testing tool. Postman supports a wide range of API formats including REST, GraphQL, SOAP, and OpenAPI, and integrates with tools like AWS Lambda, Azure Pipelines, and Apache Kafka, giving engineering teams the flexibility to fit it into virtually any modern tech stack. It is well suited for software developers, QA engineers, and platform teams across companies of all sizes — from individual freelancers using the free tier to large enterprises requiring centralized API governance and security controls. Whether the goal is accelerating backend development, ensuring reliable integrations before deployment, or enabling cross-team collaboration on API design, Postman provides a unified environment that reduces debugging time, improves API quality, and keeps development workflows organized and efficient.